Surgical clip applier
First Claim
1. A surgical clip applicator comprising:
- a housing;
a pair of handles pivotally connected to said housing and actuable in a tweezer-like manner, each of said handles having a proximal and a distal end and being pivotally mounted to said housing at said proximal ends;
a pair of jaws extending from said housing for receiving and deforming a clip therebetween;
means extending from said housing for holding a series of clips;
a U-shaped channel assembly slidably mounted in said housing;
means connected to said channel assembly for sliding said channel assembly in a distal direction in response to closing of said handles to move said jaws towards each other;
a pusher bar slidably mounted for movement in a distal direction in said channel assembly for advancing said series of clips along said holding means;
first spring means connected between said handles for biasing said channel assembly in a proximal direction;
second spring means biasing said pusher bar in a distal direction to urge said series of clips in a distal direction to push a foremost clip from said series of clips to a position between said jaws; and
means for translating tension of said second spring means to said pusher bin.
1 Assignment
0 Petitions
Accused Products
Abstract
A surgical clip applicator comprising a housing, a pair of handles pivotally connected to opposite sides of said housing, and a jaw blade assembly fixedly connected to the housing. The jaw blade assembly includes a pair of jaws for receiving and deforming a clip therebetween and a clip carrier for supplying a series of clips to said jaws. A channel assembly is slidably mounted in the housing and envelops said jaw blade assembly. A forming cam is connected between and to said handles and said channel assembly for sliding said channel assembly in a distal direction in response to closing of said handles together to move said jaws towards each other. A feed cam bar slidably mounted in said channel assembly in overlying relation to said clip carrier, said bar having a nose at its distal end. A pusher bar slidably mounted in said channel assembly for advancing clips along said clip carrier. A first spring member connected between said cam bar and said forming cam for sliding said cam bar in a proximal direction in response to closing of said handles together and further biasing said channel assembly in a proximal direction. Second spring member biasing said pusher bar in a distal direction to push a foremost clip in said clip carrier between said jaws in response to opening of said handles from each other. A clip retainer for preventing movement of said spring biased pusher bar is also provided.
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Citations
48 Claims
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1. A surgical clip applicator comprising:
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a housing; a pair of handles pivotally connected to said housing and actuable in a tweezer-like manner, each of said handles having a proximal and a distal end and being pivotally mounted to said housing at said proximal ends; a pair of jaws extending from said housing for receiving and deforming a clip therebetween; means extending from said housing for holding a series of clips; a U-shaped channel assembly slidably mounted in said housing; means connected to said channel assembly for sliding said channel assembly in a distal direction in response to closing of said handles to move said jaws towards each other; a pusher bar slidably mounted for movement in a distal direction in said channel assembly for advancing said series of clips along said holding means; first spring means connected between said handles for biasing said channel assembly in a proximal direction; second spring means biasing said pusher bar in a distal direction to urge said series of clips in a distal direction to push a foremost clip from said series of clips to a position between said jaws; and means for translating tension of said second spring means to said pusher bin. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A surgical clip applier comprising:
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a housing; a pair of handles pivotally connected to said housing and actuable in a tweezer-like manner, each of said handles having a proximal and a distal end and being pivotally mounted to said housing at said proximal ends; a pair of jaws extending from said housing for receiving and deforming a clip therebetween; means extending from said housing for housing a series of clips; a U-shaped channel assembly slidably mounted in said housing; means connected to said channel assembly for sliding said channel assembly in a distal direction in response to closing of said handles to move said jaws towards each other; a pusher bar slidably mounted in said channel assembly for advancing said series of clips along said holding means; first spring means connected between said handles for biasing said channel assembly in a proximal direction; second spring means biasing said pusher bar in a distal direction to push a foremost clip from said clip holding means to a position between said jaws; and means for translating tension of said second spring means to said pusher bar wherein said sliding means includes at least one cam slot for engaging with said handles to actuate said channel assembly.
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11. A surgical clip applicator comprising:
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a housing; a pair of handles pivotally connected to said housing, each of said handles having a proximal and a distal end and being pivotally mounted to said housing at said proximal ends; a pair of jaws extending from said housing for receiving and deforming a clip therebetween; means extending from said housing for holding a series of clips; a U-shaped channel assembly slidably mounted in said housing; means connected to said channel assembly for sliding said channel assembly in a distal direction in response to closing of said handles to move said jaws towards each other; a pusher bar slidably mounted for movement in a distal direction in said channel assembly for advancing said series of clips along said holding means; first spring means connected between said handles for biasing said channel assembly in a proximal direction; second spring means biasing said pusher bar in a distal direction to urge said series of clips in a distal direction to push a foremost clip from said series of clips to a position between said jaws; and means operatively associated with said housing for rotating said jaws with respect to said housing. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A surgical clip applicator comprising:
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a housing; a pair of handles pivotally connected to the housing, each of the handles having a proximal and a distal end and being pivotally mounted to the housing at the proximal end; a jaw blade assembly including a pair of jaws and a clip carrier, the jaw blade assembly extending from the housing and receiving and deforming a clip therebetween; a U-shaped channel assembly slidably mounted in the housing; a camming member connected to the channel assembly, the camming member sliding the channel assembly in a distal direction in response to closing of the handles to move the pair of jaws towards each other; a pusher bar movable toward the jaws to urge the series of clips towards the jaws moving to advance the series of clips along the clip carrier; a first spring connected between the handles, the first spring biasing the camming member and the channel assembly in a proximal direction; and a second spring associated with the pusher bar, the second spring biasing the pusher bar in a distal direction to urge the series of clips in a distal direction along the clip carrier to push a foremost clip from the series of clips to a position between the jaws; wherein the handles are operatively connected to the camming member, such that closing the handles drives the camming member and the channel assembly in a distal direction to close the jaws and crimp a clip positioned therebetween.
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18. A surgical clip applicator comprising:
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a housing and an elongated body portion extending therefrom; a pair of handles pivotally connected to the housing; a pair of jaws having a clip receiving portion positioned distally of the elongated body portion, the jaws being relatively movable from an open position to a closed position; a series of clips arranged in end-to-end relation, wherein in the open position, the jaws are configured to receive a clip from the series of clips and in the closed positions, the jaws deform the clip positioned therebetween; a pusher bar movable toward the jaws to urge the series of clips towards the jaws; and a biasing member cooperating with the pusher bar, the biasing member being positioned to continuously urge the pusher bar and the series of clips towards the jaws to position a distal-most clip from the series of clips between the jaws when the jaws are open and to maintain the distal-most clip in position between the jaws at least until the distal-most clip has been partially deformed. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A surgical clip applicator comprising:
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a housing and an elongated body portion extending therefrom; a pair of handles pivotally connected to the housing, each of the handles having a proximal end and a distal end and being pivotally mounted to the housing at their proximal ends, the handles being actuable in a tweezer-like manner; a pair of jaws having a clip receiving portion positioned distally of the elongated body portion, the clip receiving portion being configured to receive a clip from a series of clips, the jaws being movable between an open position and a closed position to deform a clip positioned therebetween; a pusher bar engaging a clip to urge the series of clips towards the pair of jaws; and an actuating mechanism operably connected to the handles, the actuating mechanism being movable to move the jaws between the open and closed positions. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37)
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38. A surgical clip applicator comprising:
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a housing and an elongated body portion extending therefrom; a pair of handles pivotally connected to the housing; a pair of jaws having a clip receiving portion positioned distally of the elongated body portion, the jaws being relatively movable from an open position to a closed position; a series of clips arranged in end-to-end relation, wherein the open position, the jaws are configured to receive a clip from the series of clips and in the closed position, the jaws deform the clip positioned therebetween; a pusher bar mounted for movement only in the distal direction to urge the series of clips towards the jaws; and a biasing member cooperating with the pusher bar, the biasing member being positioned to urge the pusher bar and the series of clips towards the jaws to position a distal-most clip from the series of clips between the jaws when the jaws are in the open position. - View Dependent Claims (39, 40)
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41. A surgical clip applicator comprising:
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a housing; a pair of handles pivotally connected to the housing; a pair of jaws extending from a distal end of the housing, the jaws being relatively movable from an open position to a closed position; a series of clips arranged in end-to-end relation, wherein in the open position, the jaws are configured to receive a clip from the series of clips and in the closed positions, the jaws deform the clip positioned therebetween; a pusher bar movable toward the jaws to urge the series of clips towards the jaws; a biasing member cooperating with the pusher bar, the biasing member bearing positioned to urge the pusher bar and the series of clips towards the jaws to position a distal-most clip from the series of clips between the jaws when the jaws are open and to maintain the distal-most clip in position between the jaws at least until the distal-most clip has been partially deformed; and a channel assembly slidably mounted with respect to the housing and the pair of jaws and adapted for slidable movement into engagement with the jaws to move the jaws from the open position to the closed position to deform a clip positioned therebetween. - View Dependent Claims (42, 43, 44)
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45. A surgical clip applicator comprising:
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a housing; a pair of handles pivotally connected to the housing; a pair of jaws extending from a distal end of the housing, the jaws being relatively movable from an open position to a closed position; a series of clips arranged in end-to-end relation, wherein in the open position, the jaws are configured to receive a clip from the series of clips and in the closed position, the jaws deform the clip positioned therebetween; a pusher bar mounted for movement only in the distal direction to urge the series of clips towards the jaws; a biasing member cooperating with the pusher bar, the biasing member being positioned to urge the pusher bar and the series of clips towards the jaws to position a distal-most clip from the series of clips between the jaws when the jaws are in the open position; and a channel assembly positioned within the housing and being movable into engagement with the jaws to move the jaws from the open position to the closed position. - View Dependent Claims (46, 47, 48)
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Specification